Abstract
A redox reaction that occurs in the [Cu2B10H10]/Phen system in CH3CN/DMSO and CH3CN/DMF in air yields a Cu(II) binuclear complex, [(Phen)2Cu(CO3)Cu(Phen)2]2+. The [Cu2(Phen)4(μ-CO3)]B10H10 · 2.5DMSO · 2H2O (I) and [Cu2(Phen)4(μ-CO3)]B10H10 · 4DMF (II) compounds have been isolated and studied by X-ray crystallography at 150 K and EPR at 295 K. Their magnetic properties have been studied in the range 300–2 K. In the cations of both compounds, the bridging CO 2−3 group is bidentately coordinated to two Cu atoms. The cations in I and II have different spatial orientations of the Cu-O bonds: anti-syn and anti-anti, respectively. Compound I has weak magnetic interactions caused by a short Cu…Cu distance (4.441 Å) in the dimer. No exchange coupling is observed in II.
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Original Russian Text © A.E. Dziova, V.V. Avdeeva, I.N. Polyakova, E.A. Malinina, A.V. Rotov, N.N. Efimov, E.A. Ugolkova, V.V. Minin, N.T. Kuznetsov, 2014, published in Zhurnal Neorganicheskoi Khimii, 2014, Vol. 59, No. 1, pp. 51–59.
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Dziova, A.E., Avdeeva, V.V., Polyakova, I.N. et al. anti-syn and anti-anti coordination of the bridging CO 2−3 group in [Cu2(Phen)4(μ-CO3)]B10H10 binuclear complexes: Synthesis, structure, and magnetic properties. Russ. J. Inorg. Chem. 58, 1527–1535 (2013). https://doi.org/10.1134/S0036023614010045
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DOI: https://doi.org/10.1134/S0036023614010045